Computationally Efficient Transient Stability Modeling of multi-terminal VSC-HVDC

Conference paper (2016)

Authors

A.A. van der Meer Intelligent Electrical Power Grids -

José L. Rueda Intelligent Electrical Power Grids -

Filipe Faria da Silva

M. Gibescu Intelligent Electrical Power Grids -

M.A.M.M. van der Meijden Intelligent Electrical Power Grids -

Research Group

Intelligent Electrical Power Grids () (TU Delft)

VSC-HVDC Multi-Rate Techniques Transient Stability Simulation

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http://resolver.tudelft.nl/uuid:576644b0-d49c-41c8-87f6-baf3f718a984

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Published Date

2016

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

Intelligent Electrical Power Grids

Abstract

This paper studies the inclusion of averaged VSC-based grid interfaces and HVDC networks into stability type simulations, and compares the accuracy and speed of three multi-terminal DC dynamic models: 1) a state-space based model, 2) a multi-rate improved model, and 3) a reduced-order model. The accuracy comparison is conducted by qualitative time-domain analysis taking the state-space model as a reference whereas the computational aspects are investigated by the respective execution times. The models are demonstrated on a three VSC terminal, two synchronous area system. It is shown that the reduced-order model is too inaccurate to investigate detailed large-disturbance stability-related dynamics. The multi-rate model shows the best trade-off between simulation accuracy and speed.